102 citations · 416 across the 21 of their papers we have counts for
19 papers · 1 filter
Vortex dipoles in expanding shell-shaped Bose-Einstein condensates
A. Tononi
Releasing shell-shaped Bose-Einstein condensates from the external confinement produces a spherically symmetric density distribution characterized by concentric ripples surrounding…
Geometric filtering effect in expanding Bose-Einstein condensate shells
Andrea Tononi, Maciej Lewenstein, Luis Santos
A shell-shaped Bose-Einstein condensate released from its confinement expands radially both outwards and inwards, displaying a self-interference pattern characterized by a density…
Bose-Einstein condensation on axially-symmetric surfaces
A. Tononi, G. E. Astrakharchik
We investigate the phenomenon of Bose-Einstein condensation in ideal bosonic gases confined to axially-symmetric surfaces of revolution. The single-particle Schrödinger equation is…
Dimer problem on a spherical surface
A. Tononi, D. S. Petrov, M. Lewenstein
We solve the problem of a dimer moving on a spherical surface and find that its binding energy and wave function are sensitive to the total angular momentum. The dimer gets squeeze…
Quantum Vortices in Curved Geometries
A. Tononi, L. Salasnich, A. Yakimenko
The control over the geometry and topology of quantum systems is crucial for advancing novel quantum technologies. This work provides a synthesis of recent insights into the behavi…
Gas-to-soliton transition of attractive bosons on a spherical surface
A. Tononi, G. E. Astrakharchik, D. S. Petrov
We investigate the ground state properties of bosons with attractive zero-range interactions characterized by the scattering length and confined to the surface of a spher…
Heavy-light clusters of two-dimensional fermions
J. Givois, A. Tononi, D. S. Petrov
We study binding of identical heavy fermions by a light atom in two dimensions assuming zero-range attractive heavy-light interactions. By using the mean-field theory valid for…
Shell-shaped atomic gases
A. Tononi, L. Salasnich
We review the quantum statistical properties of two-dimensional shell-shaped gases, produced by cooling and confining atomic ensembles in thin hollow shells. We consider both spher…
Low-dimensional quantum gases in curved geometries
A. Tononi, L. Salasnich
Atomic gases confined in curved geometries are characterized by distinctive features that are absent in their flat counterparts, such as periodic boundaries, local curvature, and n…
Perspective on Quantum Bubbles in Microgravity
Nathan Lundblad, David C. Aveline, Antun Balaz +13
Progress in understanding quantum systems has been driven by the exploration of the geometry, topology, and dimensionality of ultracold atomic systems. The NASA Cold Atom Laborator…
Self-binding of one-dimensional fermionic mixtures with zero-range interspecies attraction
J. Givois, A. Tononi, D. S. Petrov
For sufficiently large mass ratios the attractive exchange force caused by a single light atom interacting with a few heavy identical fermions can overcome their Fermi degeneracy p…
Binding of heavy fermions by a single light atom in one dimension
A. Tononi, J. Givois, D. S. Petrov
We consider the problem of identical fermions interacting via a zero-range attractive potential with a lighter atom in one dimension. Using the few-body approach based on the S…
Scattering theory and equation of state of a spherical two-dimensional Bose gas
A. Tononi
We analyze the scattering problem of identical bosonic particles confined on a spherical surface. At low scattering energies and for a radius much larger than the healing length, w…
Topological superfluid transition in bubble-trapped condensates
Andrea Tononi, Axel Pelster, Luca Salasnich
Ultracold quantum gases are highly controllable and, thus, capable of simulating difficult quantum many-body problems ranging from condensed matter physics to astrophysics. Althoug…
Sound modes in collisional superfluid Bose gases
Koichiro Furutani, Andrea Tononi, Luca Salasnich
We theoretically investigate sound modes in a weakly-interacting collisional Bose gas in dimensions. Using the Landau's two-fluid hydrodynamics and working within the Bogoliubo…
Dephasing-rephasing dynamics of one-dimensional tunneling quasicondensates
Andrea Tononi, Flavio Toigo, Sandro Wimberger +2
We study the quantum tunneling of two one-dimensional quasi-condensates made of alkali-metal atoms, considering two different tunneling configurations: side-by-side and head-to-tai…
Bose-Einstein Condensation on the Surface of a Sphere
A. Tononi, L. Salasnich
Motivated by the recent achievement of space-based Bose-Einstein condensates (BEC) with ultracold alkali-metal atoms under microgravity and by the proposal of bubble traps which co…
Quantum solitons in spin-orbit-coupled Bose-Bose mixtures
Andrea Tononi, Yueming Wang, Luca Salasnich
Recent experimental and theoretical results show that weakly interacting atomic Bose-Bose mixtures with attractive interspecies interaction are stabilized by beyond-mean-field effe…
Condensation and superfluidity of dilute Bose gases with finite-range interaction
A. Tononi, A. Cappellaro, L. Salasnich
We investigate an ultracold and dilute Bose gas by taking into account a finite-range two-body interaction. The coupling constants of the resulting Lagrangian density are related t…